They are in the same ballpark. Irreverence is treating serious matters lightly, like making jokes at a funeral. Insolence is rudeness or lack of respect toward a person who is a social superior, like...
it means average distance which equals the total of each distance divided by how many sets of numbers you previously added by.
it means...that you mean what you mean:)
1.not nice 2.rude and disrespectful to other people 3.opposite of nice 4.cruel 5.harsh through words or actions
I don't know, but it's an answer on page 185 in " Cracking the AP English Language & Composition Exam 2010 Edition